John corson



tinned $121M fiatent Gtjhlire.

JOHN OORSON, OF WASHINGTON, DISTRICT OF QOLUMBIA, ASSIGNOR TO I HIMSELF AND DANIEL BREED, 01* SAME PLACE.

Lett'rs Patent No. 95,882, datezFOctober 19, 1869.

IMPROVEMENT IN THE MANUFACTURE AND PRESERVATION OP METALS.

The Schedule referred to in these Letters Patent and making part of the same.

To all whom 'it may concern Be it knownthat I, JOHN (Jonson, of Washington, in the county of 'Washington, and District of Columbia, have invented a new and useful Improve-- ment in the Manufacture and Preservation of Metals; and I do hereby de'clarethat the following is a full and exact description thereof.

My invention consists in manufacturing, tempering, and preserving metals ina state of insulation from earth-currents of electricity, in order to prevent crystallization, and to produce andmetain the metal in a superior fibrous condition.

In the practical application of my invention, it is necessary to insulate the foundation of the furnace, the hammers, anvils, floors for the workmen, furnace-tools, rollers and machinery, moulds, forges, and all appliances for working metals and tempcringedgetools, store-houses and racks where metals are kept, and every place and thing in contact or connection with ,the metal. Also, railroads, bridges, buildings, and other structures made of iron, in whole or in part, should be insulated.

For the purpose of insulation, glass tiles, balls, pillars, or any other suitable means may be employed. Upon railroads'a board of gutta-percha, or other bad conductor may be placed between the ties and rails,

and also under the chairs, or under the rails, upon the chairs, thus forming an insulating, elastic cush--- ion for the rails, and thereby preventing the usually severe concussion of the rolling stock. Or other q means of insulation may be employed.

My invention may be applied not only to iron and I steel, but also to copper, brass, and other metals and alloys where it is desirable to secure ahighly fibrous Witnesses:

DAMEL BREED, EDM. I BROWN.

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